Carpinus × schuschaensis H. Winkl.

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This tree is sometimes recognised as a distinct species, though it is probably a hybrid between C. betulus L. and C. orientalis Mill. (Govaerts & Frodin 1998). Tree to 15 m (?). Branchlets reddish brown and pubescent. Leaves deciduous, 5–7 cm, ovate, upper surface glabrous, lower surface pubescent, 10–14 secondary veins on each side of the midvein, margins irregularly double-serrate, apex acuminate; petiole pubescent, 0.6–1 cm long. Monoecious; staminate inflorescences catkin-like; pistillate inflorescences catkin-like. Flowers inconspicuous; bracts imbricate, triangular, 2–3 × 1–1.5 cm, margins double-serrate. Fruit a nutlet with longitudinal ribs. Flowering March to April, fruiting June to July (Iran). Bobrov 1970. Distribution AZERBAIJAN; IRAN. USDA Hardiness Zone 7. Conservation status Not evaluated.

The best-known specimens of this hybrid in cultivation are at the Sir Harold Hillier Gardens, two of which were grown from seed collected by Roy Lancaster and Ann Ala (Lancaster & Ala 5) in 1972, now fine vigorous trees of 9–10 m. The habit is described as ‘upright’ by Hillier & Coombes (2002). Carpinu ×schuschaensis is available in the nursery trade in continental Europe, the United Kingdom and the United States.



Other species in the genus